4 models have responded to the "Logic Puzzle" challenge. Compare their approaches side-by-side on RIVAL. This response is part of RIVAL's open dataset of 5,600+ AI model responses.
O1's response to the Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Sally (a girl) has 3 brothers. Each brother has 2 sisters. How many sisters does Sally have?
First, note that each of Sally’s three brothers has exactly two sisters. One of those sisters is clearly Sally. Since each brother’s two sisters must be the same two girls for all of them, there must be exactly one other sister besides Sally.
Therefore, Sally has 1 sister.
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